'His' or 'her' relatives take an additional suffix. This is a process called obviation. The obviative is sometimes referred to as the "fourth person". And is used to distinguish between multiple third-persons in a sentence. For example, there are two third persons in the sentence Awe inini obaabaayan aakoziwan (This man's father is sick). One of them is this man, and the other is (his) father. It is a rule in Ojibwe, that the third person's relative is always considered obviative (or the fourth person) and is always marked for obviation.

The obviative suffix for a singular noun is -an (or: -yan, -wan):

Ogozisan - His/her son
Odaanisan - His/her daughter

The obviative suffix for a plural noun is -a' (or: -ya',
-wa'):

Ogozisa' - His/her sonsOdaanisa' - His/her daughters

Verbs and demonstrative pronouns related to an obviative noun are also marked for obviation. The AI verb obviative suffixes in the independent order are:

s/he obv. -> (verb)+wanthey (obv.) -> (verb)+wa'

In content questions the obviative suffix is -nid:

s/he obv. -> (verb)+nidthey (obv.) -> (verb)+nid

With obviative nouns only inanimate plural demonstrative pronouns are used: